Windows 7 BETA was released to the public yesterday, and Microsoft fans everywhere have been anxious to give the anticipated new operating system a spin. Windows 7 is still in BETA (which means test mode), so it isn’t wise to wipe out your main computer and install the package. While some people will install Windows 7 BETA on a secondary computer, not all of us have that luxury, or feel like going through the hassle. For these people you can setup your main computer to safely dual-boot the new OS (even from the same hard drive). The video below shows you how to add Windows 7 BETA to your Windows Vista computer without disrupting or modifying your Vista installation.
Tags: beta, dual-boot, install, screencast, windows 7, windows vista

This helped a lot, thanks!
Thanks a ton helped make the process so much easier!
Thanks a lot for this great easy tutorial of how to dual-boot two OS, but I was wonder about 2 things
1)Does the hard drive partition have to be unallocated?
Or
Can I use a normal free 20 gig partition?
it would be really helpful if you could answer this question.
Thanks
I believe you can install it on any partition. I am not sure if Windows 7 will format the partition and wipe it clear or not… I doubt it needs to. Either way it would give you warning before it did anything destructive to the partition I would think.
Once again I really would like to thank you,,
I went through the steps on by one, and I ended up successfully having to Operating systems,
Yes I have the dual boot screen with 30 seconds time,
Wow I just loved Windows 7,,, but still there is a lot of drivers problem need to be updated for Windows 7, the operating system feels so smooth and good , I love the way I move from program to program , from tap to tap with no hassle at all.
Ok Ok here my brain keeps annoying me , what if I want to delete Windows 7, what am I suppose to do?
Can you give me some easy tips on that? Please